jack hanna, director emeritus, also the host of jack hanna's into the wild and a new show called wild countdown and his tigers are literally eating my studio. welcome. jack, am i going to die here? >> no. you shouldn't die, but if you were going to die, these are the animals that would do it. >> these are baby tigers, how old are they? >> these are siberian tigers, 18 weeks. >> how old can they kill a man? >> 22 months. these animals weigh over 600 pounds. one of the rarest cats in the world, piers. less than 400, could be 200 left in siberia in that part of the world. they were hunted for their coats. problem today, they are 600 pounds. >> they look strong. >> they could literally put a hole through your arm. >> right. looks like he wants to. can they bite at this age? >> yeah, they can bite. they learn from each other. species survival plan and what they are, they have chips in them. it could be another three to six months could go to a zoo in europe, usa trail ya, credited zoo, these animals are so rare we have to know exactly the breeding program. >> why are you not remotely scare